indusium definition

  • noun:
    • An enclosing membrane, as that since the sorus of a fern.
    • A protecting membrane layer, especially that since the developing spores of a fern
    • an accumulation hairs united in order to form a kind of cup, and inclosing the stigma of a flower.
    • The immediate covering of the fresh fruit dots or sori in a lot of ferns, generally a really slim scale attached by the center or side to a veinlet.
    • A peculiar covering within certain fungi.
    • In Roman antiquity, one of many two tunics frequently donned by both women and men, most likely the external tunic, while some arch├Žologists have contended it was the inner tunic regarding the ladies.
    • In botany:
    • In entomology, the coating or covering of a larval insect, while the situation of a caddis-worm.
    • In physiology, the amnion, the innermost membrane layer enveloping the fetus.
    • A layer of grey matter within the corpus callosum inside mind: also indusium griseum.
    • among the embryonic envelops developed, besides the amnion and serosa in some bugs, including the
    • a membrane enclosing and safeguarding the building spores particularly that within the sori of a fern

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